На сайте почты кипра / службы доставки (fedex, dhl )есть список (они есть на англ).
Проверьте по нему. Навскидку я янтаря там не помню, но возможна общая формулировка.

Вот из
Faq


Cyprus Post does not undertake the handling and transportation of items contained in the UPU List of Prohibited Items valid at the time, such as: radioactive materials, infectious substances, sensitive biological substances, explosives, flammable substances, corrosive material, narcotics, compressed gas and any other article whose transportation is prohibited by the International Air Transport Association (IATA) and the International Civil Aviation Organisation (ICAO). Cyprus Post has the right to check the item using any method or means, including the opening of the package in order to prevent the transportation of prohibited goods.

Items containing lithium batteris cannot be accepted for dispatch using the traditional postal services. They can be sent using the Courier service QuickPost which is provided in cooperation with DHL Cyprus Ltd.

You should also note that every destination country has its own rules regarding the importation of goods. If in doubt, please ask the Service Agent at the Post Office.


https://www.cypruspost.post/en/faq-prohibited-items

Забавно.
Я думал пирожки из Кипра в Англию внучкам почтой пересылаются не по закону.
А оказывается можно.

Food can be sent in the post, according to the current regulations and the legislation in the destination country. However, in case the food is altered or destroyed, no compensation is provided.